The exclusion TELNET logon failure, which is a priority step to do?

 The exclusion TELNET logon failure, which is a priority step to do?
A .  Check whether the client can ping the server
B .  Check whether the number of users logging in to the device has reached the upper limit
C .  Check whether ACL is configured in the VTY user interface view on the device
D .  Check whether the protocol configuration allowed for access in the VTY type user interface view is correct

View Answer

Answer: A